645 NE 77th St Apt 1

Miami, FL 33138 · condos · For Sale · 100 days on market
Asking price$425,000
2 beds 1 baths 730 sqft
Suggested offer$197,239$227,761 above the est. market value of $197,239.
View on Realtor.com →
Listed by Oriah Ben-Gal · Edge International Realty
Typecondos
Built1953
Price / sqft$582
Est. value (own analysis)$197,239
Rent estimate (own analysis)$2,250/mo
HOA$1,040/mo
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Neighborhood

Show every detail
Statusfor_sale
Listed date2026-05-25
Removed date
MLSMiamiMLS #A12024908
Coordinates25.84619, -80.18355
Address645 NE 77th St Apt 1
CityMiami
StateFL
Zip33138
Listing ID5944793939
Sourceus-real-estate-listings, cached 2026-08-30

ZIP market snapshot (33138)

Typical home value (ZHVI)$806,988
Typical rent (ZORI)$2,367/mo
Zillow Research's ZHVI (home value index) and ZORI (rent index) for this ZIP, as of 2026-07 — free published data, refreshed monthly, no RentCast quota spent. "Typical value/rent" is a smoothed index, not a literal median of active listings.

Underwriting (buy-and-hold, default assumptions)

Purchase price$425,000
Down payment (20.0%)$85,000
Loan amount$340,000
Closing costs (5.0%)$21,250
Total cash to close$106,250
Rent (comp-derived)$2,250$27,000
Vacancy loss (8.0%)

Vacancy Loss

Gross Scheduled Rent × Vacancy Rate

Gross scheduled rent (annual) comp$27,000
Vacancy rate (assumption) assumption8.0%

$27,000 × 8.0% = $2,160

Effective gross income$2,070$24,840
Property tax (placeholder 1.9% of price)$673$8,075
Insurance (placeholder 0.8% of price)$283$3,400
HOA dues$1,040$12,480
Management (0.0% of EGI)$0$0
Maintenance (5.0% of GSR)$113$1,350
Total operating expenses$2,109$25,305
Net operating income (NOI)

Net Operating Income (NOI)

Effective Gross Income − Total Operating Expenses

Effective gross income derived$24,840
Total operating expenses derived$25,305

$24,840 − $25,305 = -$465

Debt service (6.66%, avg 30yr rate as of 2026-08-27, 30yr amortizing)

Monthly Principal & Interest

Standard amortization on the loan amount, at the effective rate and term

Loan amount derived$340,000
Interest rate (avg 30yr rate) comp6.7%
Term (assumption) assumption30 years

$340,000 amortized at 6.7% over 30 years = $2,185/mo

CapEx reserve (5.0% of GSR)$113$1,350
Mortgage insurance (PMI) (0.0% of loan, not required — down payment ≥ 20%)$0$0
Cash flow

Monthly Cash Flow

(NOI − Annual Debt Service − Annual CapEx Reserve − Annual PMI) ÷ 12

NOI derived-$465
Annual debt service derived$26,219
Annual CapEx reserve assumption$1,350
Annual PMI assumption$0

(-$465 − $26,219 − $1,350 − $0) ÷ 12 = -$2,336

Cap rate

Cap Rate

NOI ÷ Purchase Price

NOI derived-$465
Purchase price data$425,000

-$465 ÷ $425,000 = -0.1%

Cash-on-cash

Cash-on-Cash Return

Annual Cash Flow ÷ Total Cash Invested

Annual cash flow derived-$28,034
Total cash to close derived$106,250

-$28,034 ÷ $106,250 = -26.4%

DSCR

Debt Service Coverage Ratio (DSCR)

NOI ÷ Annual Debt Service

NOI derived-$465
Annual debt service derived$26,219

-$465 ÷ $26,219 = -0.02

Rent-to-price (1% rule)

Rent-to-Price (the "1% rule")

(Gross Scheduled Rent ÷ 12) ÷ Purchase Price

Gross scheduled rent (annual) comp$27,000
Purchase price data$425,000

($27,000 ÷ 12) ÷ $425,000 = 0.5%

Gross rent multiplier

Gross Rent Multiplier (GRM)

Purchase Price ÷ Gross Scheduled Rent

Purchase price data$425,000
Gross scheduled rent (annual) comp$27,000

$425,000 ÷ $27,000 = 15.7

Operating expense ratio

Operating Expense Ratio

Total Operating Expenses ÷ Effective Gross Income

Total operating expenses derived$25,305
Effective gross income derived$24,840

$25,305 ÷ $24,840 = 101.9%

Break-even occupancy

Break-Even Occupancy

(Total OpEx + Annual Debt Service + Annual PMI) ÷ Gross Scheduled Rent

Total operating expenses derived$25,305
Annual debt service derived$26,219
Annual PMI assumption$0
Gross scheduled rent (annual) comp$27,000

($25,305 + $26,219 + $0) ÷ $27,000 = 190.8%

Comparables

Same ZIP. Real active rental listings, used to derive the rent estimate above.

AddressTypeBedsBathsSqftAsking rentListedDays on market
apartment21700$2,5002026-08-15
condos22967$2,6002026-08-14
condos22894$1,9502026-08-08
condos21927$3,2002026-07-24
apartment21927$2,1502026-07-22
condos21665$1,9002026-07-22
apartment21800$2,5002026-07-21
apartment21800$2,6502026-07-20
apartment22580$2,1002026-07-11
apartment22580$2,1002026-07-11
apartment22580$2,1002026-07-11
apartment22849$1,8502026-07-10
condos21754$2,0002026-07-03
apartment22720$2,0002026-06-25
apartment22580$2,2502026-06-24
apartment22580$2,2502026-06-24
apartment21891$2,2502026-06-24
apartment21750$1,7002026-06-17
apartment21810$1,8502026-06-12
condos21610$2,0002026-06-08
condos21938$2,8502026-06-01
condos22967$2,3252026-05-29
condos22914$2,0002026-05-28
apartment22800$2,3002026-05-21
condos21926$3,3502026-07-22
condos21855$1,8002026-03-12
apartment21600$1,8002026-08-25
condos21938$2,8002026-08-25
apartment21700$2,1002026-02-26
apartment21800$1,9002026-01-12
condos22973$6,0002026-03-25
apartment22863$2,581
apartment21690$1,8502026-03-12
apartment22783$2,105
apartment22783$2,115
apartment22783$2,105
apartment22783$2,075
apartment22865$2,549
apartment22873$2,385
apartment22863$2,586
apartment22752$1,988
apartment22864$3,258
condos21798$2,1002026-08-20
condos22816$2,4002026-08-07
apartment22900$3,6252026-07-27
apartment21810$1,8502025-08-27
apartment21900$2,4002025-05-10
apartment22650$2,500
apartment22783$2,105
apartment22752$2,008
apartment22863$2,567
apartment22863$2,611
apartment22863$2,567
apartment22863$2,587
apartment22934$3,194
condos21900$2,4002026-09-01

3 NE 70th St Unit 1

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage700
Listed2026-08-15
Days on market

Asking rent: $2,500

View on Zillow →

7801 NE 4th Ct Apt 315

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage967
Listed2026-08-14
Days on market

Asking rent: $2,600

View on Zillow →

428 NE 82nd St Unit 4E

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage894
Listed2026-08-08
Days on market

Asking rent: $1,950

View on Zillow →

777 NE 62nd St Apt C303

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage927
Listed2026-07-24
Days on market

Asking rent: $3,200

View on Zillow →

1120 NE 81st St Apt 1

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage927
Listed2026-07-22
Days on market

Asking rent: $2,150

View on Zillow →

665 NE 83rd Ter Apt 115

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage665
Listed2026-07-22
Days on market

Asking rent: $1,900

View on Zillow →

893 NE 81st St

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage800
Listed2026-07-21
Days on market

Asking rent: $2,500

View on Zillow →

893 NE 81st St Apt 1

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage800
Listed2026-07-20
Days on market

Asking rent: $2,650

View on Zillow →

8106 NE 1st Ave Apt 15

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage580
Listed2026-07-11
Days on market

Asking rent: $2,100

View on Zillow →

8106 NE 1st Ave Apt 12

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage580
Listed2026-07-11
Days on market

Asking rent: $2,100

View on Zillow →

8106 NE 1st Ave Apt 8

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage580
Listed2026-07-11
Days on market

Asking rent: $2,100

View on Zillow →

433 NE 82nd St Apt 11

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage849
Listed2026-07-10
Days on market

Asking rent: $1,850

View on Zillow →

7851 Dunham Blvd Apt 12

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage754
Listed2026-07-03
Days on market

Asking rent: $2,000

View on Zillow →

666 NE 80th St Apt 6

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage720
Listed2026-06-25
Days on market

Asking rent: $2,000

View on Zillow →

8106 NE 1st Ave Apt 3

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage580
Listed2026-06-24
Days on market

Asking rent: $2,250

View on Zillow →

8106 NE 1st Ave Apt 2

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage580
Listed2026-06-24
Days on market

Asking rent: $2,250

View on Zillow →

570 NE 64th St Apt 2

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage891
Listed2026-06-24
Days on market

Asking rent: $2,250

View on Zillow →

426 NE 77th Street Rd Apt 4

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage750
Listed2026-06-17
Days on market

Asking rent: $1,700

View on Zillow →

8275 NE Miami Ct Unit 202

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage810
Listed2026-06-12
Days on market

Asking rent: $1,850

View on Zillow →

577 NE 62nd St Apt 2

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage610
Listed2026-06-08
Days on market

Asking rent: $2,000

View on Zillow →

650 NE 64th St Apt G402

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage938
Listed2026-06-01
Days on market

Asking rent: $2,850

View on Zillow →

7801 NE 4th Ct Apt 514

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage967
Listed2026-05-29
Days on market

Asking rent: $2,325

View on Zillow →

8950 NE 8th Ave Apt 405

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage914
Listed2026-05-28
Days on market

Asking rent: $2,000

View on Zillow →

529 NE 62nd St Unit 404

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage800
Listed2026-05-21
Days on market

Asking rent: $2,300

View on Zillow →

750 NE 64th St Apt B404

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage926
Listed2026-07-22
Days on market

Asking rent: $3,350

View on Zillow →

424 NE 82nd St Apt 4C

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage855
Listed2026-03-12
Days on market

Asking rent: $1,800

View on Zillow →

145 NE 67th St Unit 1

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage600
Listed2026-08-25
Days on market

Asking rent: $1,800

View on Zillow →

650 NE 64th St Apt G602

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage938
Listed2026-08-25
Days on market

Asking rent: $2,800

View on Zillow →

8000 NE Bayshore Ct Apt 106

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage700
Listed2026-02-26
Days on market

Asking rent: $2,100

View on Zillow →

88 NE 68th Ter Unit 88

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage800
Listed2026-01-12
Days on market

Asking rent: $1,900

View on Zillow →

720 NE 62nd St Unit 307

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage973
Listed2026-03-25
Days on market

Asking rent: $6,000

View on Zillow →

471 NE 83rd St Apt 715

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage863
Listed
Days on market

Asking rent: $2,581

View on Zillow →

7630 NE 2nd Ct Apt 3

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage690
Listed2026-03-12
Days on market

Asking rent: $1,850

View on Zillow →

719 NE 83rd Ter # 784-304

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage783
Listed
Days on market

Asking rent: $2,105

View on Zillow →

719 NE 83rd Ter # 760-404

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage783
Listed
Days on market

Asking rent: $2,115

View on Zillow →

719 NE 83rd Ter # 784-305

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage783
Listed
Days on market

Asking rent: $2,105

View on Zillow →

719 NE 83rd Ter # 784-201

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage783
Listed
Days on market

Asking rent: $2,075

View on Zillow →

719 NE 83rd Ter # 719-403

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage865
Listed
Days on market

Asking rent: $2,549

View on Zillow →

719 NE 83rd Ter # 719-212

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage873
Listed
Days on market

Asking rent: $2,385

View on Zillow →

471 NE 83rd St Apt 430

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage863
Listed
Days on market

Asking rent: $2,586

View on Zillow →

719 NE 83rd Ter # 716-208

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage752
Listed
Days on market

Asking rent: $1,988

View on Zillow →

6445 NE 7th Ave Apt 532

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage864
Listed
Days on market

Asking rent: $3,258

View on Zillow →

736 NE 92nd St Apt 2K

Miami Shores, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage798
Listed2026-08-20
Days on market

Asking rent: $2,100

View on Zillow →

715 NE 91st St Unit 3A

Miami Shores, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage816
Listed2026-08-07
Days on market

Asking rent: $2,400

View on Zillow →

715 NE 92nd St Apt 1

Miami Shores, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage900
Listed2026-07-27
Days on market

Asking rent: $3,625

View on Zillow →

8287 NE Miami Ct Unit 101

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage810
Listed2025-08-27
Days on market

Asking rent: $1,850

View on Zillow →

1101 NE 80th St

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage900
Listed2025-05-10
Days on market

Asking rent: $2,400

View on Zillow →

560 NE 63rd St Apt 3

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage650
Listed
Days on market

Asking rent: $2,500

View on Zillow →

719 NE 83rd Ter # 760-305

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage783
Listed
Days on market

Asking rent: $2,105

View on Zillow →

719 NE 83rd Ter # 716-504

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage752
Listed
Days on market

Asking rent: $2,008

View on Zillow →

471 NE 83rd St Apt 335

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage863
Listed
Days on market

Asking rent: $2,567

View on Zillow →

471 NE 83rd St Apt 830

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage863
Listed
Days on market

Asking rent: $2,611

View on Zillow →

471 NE 83rd St Apt 237

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage863
Listed
Days on market

Asking rent: $2,567

View on Zillow →

471 NE 83rd St Apt 733

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage863
Listed
Days on market

Asking rent: $2,587

View on Zillow →

6445 NE 7th Ave Apt 209N

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage934
Listed
Days on market

Asking rent: $3,194

View on Zillow →

1101 NE 80th St Apt 301

Miami, 33138 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage900
Listed2026-09-01
Days on market

Asking rent: $2,400

View on Zillow →

Same ZIP & bedroom count. Closed sales from Realtor.com over the last 12 months, matched to this property's type — real transaction prices, not asking prices. Falls back to Miami-Dade County public records (property appraiser tax roll) when Realtor.com has no sales on file for the area.

AddressTypeBedsBathsLiving sqftSale priceSale date
1200 NE 105th St Apt 27condos22960$350,0002026-08-27
8925 NE 4 Avenue Rd Unit 8925condos22954$250,0002026-08-18
4000 Towerside Ter Apt 2005condos221,456$345,0002026-08-13
7751 NE Bayshore Ct Apt 7Bcondos221,203$385,0002026-07-30
780 NE 69th St Apt 2201condos221,316$575,0002026-07-27
8950 NE 8th Ave Apt 402condos22853$257,0002026-07-23
2000 Towerside Ter Apt 1806condos221,520$305,0002026-07-22
1000 Quayside Ter Apt 1404condos221,312$300,0002026-07-17
1000 Quayside Ter Apt 1402condos221,544$235,0002026-07-17
4000 Towerside Ter Apt 2111condos221,469$300,0002026-06-30
720 NE 62nd St Apt 403condos221,177$619,0002026-06-16
680 NE 64th St Unit APH6condos221,089$420,0002026-06-16
4000 Towerside Ter Apt 1712condos221,469$360,0002026-06-11
777 NE 62nd St Apt C203condos21926$475,0002026-06-05
720 NE 69th St Apt 11Scondos232,957$1,500,0002026-05-29
652 NE 63rd St Apt 403condos22945$445,0002026-05-28
2000 Towerside Ter Apt 1407condos221,535$315,0002026-05-22
680 NE 64th St Unit APH2condos221,089$495,0002026-05-20
2000 Towerside Ter Ph 3condos221,312$225,0002026-05-12
2000 Towerside Ter Apt 1905condos221,520$285,0002026-05-12
8950 NE 8th Ave Apt 506condos22932$259,0002026-05-06
4000 Towerside Ter Apt 1503condos221,268$275,0002026-05-01
7801 NE 4th Ct Apt 516condos22967$184,0002026-04-22
750 NE 64th St Apt B308condos22990$441,0002026-04-21
8930 NE 8th Ave Unit 901condos221,045$450,0002026-04-08
1700 NE 105th St Apt 412condos221,154$235,0002026-03-27
2000 Towerside Ter Apt 1512condos221,538$500,0002026-03-25
4000 Towerside Ter Apt 1209condos221,268$357,0002026-03-23
680 NE 64th St Unit APH3condos221,080$590,0002026-03-16
720 NE 69th St Apt 9Wcondos231,763$595,0002026-03-13
1000 Quayside Te Unit 410condos221,312$220,0002026-03-10
4000 Towerside Ter Apt 805condos221,456$335,0002026-03-05
720 NE 62nd St Apt 103condos221,098$610,0002026-03-04
1700 NE 105th St Apt 203condos221,200$280,0002026-03-04
1000 Quayside Ter Ph 9condos221,312$255,0002026-02-18
4000 Towerside Ter Apt 1005condos221,456$350,0002026-02-13
1603 NE 105th St Unit 3-9condos231,507$450,0002026-02-12
2000 Towerside Ter Apt 610condos221,312$265,0002026-02-06
1000 Quayside Ter Ph 5condos221,520$435,0002026-01-16
1000 Quayside Te Unit 509condos221,312$220,0002026-01-15
8713 NE 4th Avenue Rd Unit 8713condos22954$255,0002025-12-10
1000 Quayside Ter Apt TS11condos221,538$420,0002025-12-09
7825 NE Bayshore Ct Apt 504condos22768$310,0002025-12-03
715 NE 91st St Unit 2Acondos22861$285,0002025-12-01
4000 Towerside Ter Apt 1704condos221,268$350,0002025-11-18
1000 Quayside Ter Apt 1909condos221,312$330,0002025-11-03
2000 Towerside Ter Apt 1111condos221,538$260,0002025-10-30
726 NE 92nd St Apt 12Lcondos21894$312,0002025-10-23
4000 Towerside Ter Apt 610condos221,268$284,0002025-10-15
7801 NE 4th Ct Apt 317condos23972$205,0002025-10-06

Same ZIP. Other properties currently for sale nearby — asking prices, not closed sale prices. Not a price comp; see Sold comps for actual transaction history.

AddressTypeBedsBathsSqftAsking priceDays on market
830 NE 72nd Stsingle_family221,053$1,250,000
4000 Towerside Ter Apt 308condos221,465$397,000
780 NE 69th St Apt 1210condos221,316$550,000
634 NE 72nd Tersingle_family211,530$1,099,000
780 NE 69th St Apt 808condos221,219$419,000
446 NE 64th Stsingle_family221,024$799,000
801 NE 70th Stsingle_family21962$995,000
6220 NE Miami Plsingle_family21880$1,800,000

10-year hold projection

IRR-7.5%
Equity multiple-0.27x
Total return (10yr)-$79,277
YearProperty valueNOICash flowLoan balanceEquity
1$437,750-$465-$28,034$336,314$101,436
2$450,883-$352-$27,955$332,374$118,508
3$464,409-$233-$27,871$328,164$136,245
4$478,341-$107-$27,780$323,665$154,676
5$492,691$26-$27,684$318,857$173,835
6$507,472$166-$27,580$313,719$193,754
7$522,696$314-$27,471$308,228$214,469
8$538,377$470-$27,354$302,359$236,018
9$554,529$635-$27,229$296,088$258,440
10$571,164$808-$27,097$289,386$281,778
Assumes 3.0% annual rent growth, 2.5% expense growth, 3.0% appreciation, and a 6.0% selling cost at exit — all placeholder assumptions, not market-derived.
All figures are estimates for evaluation purposes only, not investment, tax, legal, or insurance advice. Property tax is estimated from a real matched tax bill or millage rate when available, a placeholder % of price otherwise; insurance is scaled by flood and wind risk where those are known and a flat percentage otherwise — never a real quote. Verify all of them, along with association restrictions and permit status, before committing capital. Rent estimates come from real comps or Zillow’s ZIP index, not appraisals.